中国物理B ›› 2020, Vol. 29 ›› Issue (2): 27901-027901.doi: 10.1088/1674-1056/ab671d

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Time-dependent photothermal characterization on damage of fused silica induced by pulsed 355-nm laser with high repetition rate

Chun-Yan Yan(闫春燕), Bao-An Liu(刘宝安), Xiang-Cao Li(李香草), Chang Liu(刘畅), Xin Ju(巨新)   

  1. Department of Physics, University of Science and Technology Beijing, Beijing 100083, China
  • 收稿日期:2019-09-29 修回日期:2019-12-05 出版日期:2020-02-05 发布日期:2020-02-05
  • 通讯作者: Xin Ju E-mail:jux@ustb.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 51402173) and the Fundamental Research Funds for the Central Universities, China (Grant No. FRF-TP-15-099A1).

Time-dependent photothermal characterization on damage of fused silica induced by pulsed 355-nm laser with high repetition rate

Chun-Yan Yan(闫春燕), Bao-An Liu(刘宝安), Xiang-Cao Li(李香草), Chang Liu(刘畅), Xin Ju(巨新)   

  1. Department of Physics, University of Science and Technology Beijing, Beijing 100083, China
  • Received:2019-09-29 Revised:2019-12-05 Online:2020-02-05 Published:2020-02-05
  • Contact: Xin Ju E-mail:jux@ustb.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 51402173) and the Fundamental Research Funds for the Central Universities, China (Grant No. FRF-TP-15-099A1).

摘要: Time-dependent damage to fused silica induced by high frequency ultraviolet laser is investigated. Photothermal spectroscopy (PTS) and optical microscopy (OM) are utilized to characterize the evolution of damage pits with irradiation time. Experimental results describe that in the pre-damage stage of fused silica sample irradiated by 355-nm laser, the photothermal spectrum signal undergoes a process from scratch to metamorphism due to the absorption of laser energy by defects. During the visible damage stage of fused silica sample, the photothermal spectrum signal decreases gradually from the maximum value because of the aggravation of the damage and the splashing of the material. This method can be used to estimate the operation lifetime of optical elements in engineering.

关键词: photothermal spectroscopy, fused silica, laser-induced damage

Abstract: Time-dependent damage to fused silica induced by high frequency ultraviolet laser is investigated. Photothermal spectroscopy (PTS) and optical microscopy (OM) are utilized to characterize the evolution of damage pits with irradiation time. Experimental results describe that in the pre-damage stage of fused silica sample irradiated by 355-nm laser, the photothermal spectrum signal undergoes a process from scratch to metamorphism due to the absorption of laser energy by defects. During the visible damage stage of fused silica sample, the photothermal spectrum signal decreases gradually from the maximum value because of the aggravation of the damage and the splashing of the material. This method can be used to estimate the operation lifetime of optical elements in engineering.

Key words: photothermal spectroscopy, fused silica, laser-induced damage

中图分类号:  (Deep-level photothermal spectroscopy)

  • 79.10.Ca
42.70.Ce (Glasses, quartz) 79.20.Ds (Laser-beam impact phenomena)